Announcements
* TileDB 2.19, targeted for release in December 2023, includes performance improvements to the aggregate pushdown APIs.
Breaking behavior
* The Windows release artifacts no longer include static libraries. [4469](https://github.com/TileDB-Inc/TileDB/pull/4469)
New features
* Allow aggregates to pipeline the processing of full tiles. [4465](https://github.com/TileDB-Inc/TileDB/pull/4465)
* Add class TemporaryDirectory to generate a PRNG-seeded unique directory. [4498](https://github.com/TileDB-Inc/TileDB/pull/4498)
* Add sm.consolidation.total_buffer_size setting. [4550](https://github.com/TileDB-Inc/TileDB/pull/4550)
* Use tile metadata in aggregates. [4468](https://github.com/TileDB-Inc/TileDB/pull/4468)
* Load validity tiles only for null count aggregates when possible. [4513](https://github.com/TileDB-Inc/TileDB/pull/4513)
* Prevent reading tiles when using fragment metadata in aggregates. [4481](https://github.com/TileDB-Inc/TileDB/pull/4481)
Improvements
* Refactor the fragment info loading code to reduce coupling. [4453](https://github.com/TileDB-Inc/TileDB/pull/4453)
* Fragment metadata: adding get_tile_metadata. [4466](https://github.com/TileDB-Inc/TileDB/pull/4466)
* Improve error reporting when performing too large GCS direct uploads. [4047](https://github.com/TileDB-Inc/TileDB/pull/4047)
* Refactor filestore API so that it uses internal TileDB library calls. [3763](https://github.com/TileDB-Inc/TileDB/pull/3763)
* Encode Win32 error messages in UTF-8. [3987](https://github.com/TileDB-Inc/TileDB/pull/3987)
* Remove unused compression defines. [4480](https://github.com/TileDB-Inc/TileDB/pull/4480)
* Integrate baseline object library into the main build. [4446](https://github.com/TileDB-Inc/TileDB/pull/4446)
* Internal clean-up of array timestamps. [3633](https://github.com/TileDB-Inc/TileDB/pull/3633)
* Add base class for VFS filesystems. [4497](https://github.com/TileDB-Inc/TileDB/pull/4497)
* Remove extraneous TILEDB_EXPORT tags. [4507](https://github.com/TileDB-Inc/TileDB/pull/4507)
* Query Plan REST support - part 1: handler. [4516](https://github.com/TileDB-Inc/TileDB/pull/4516)
* Use StorageFormat APIs to generate timestamped uris. [4530](https://github.com/TileDB-Inc/TileDB/pull/4530)
* Refactor the group code. [4378](https://github.com/TileDB-Inc/TileDB/pull/4378)
* Consolidation plan REST support - part1: handler. [4534](https://github.com/TileDB-Inc/TileDB/pull/4534)
* Use constexpr to check for filesystem support. [4548](https://github.com/TileDB-Inc/TileDB/pull/4548)
* Add vfs.gcs.max_direct_upload_size config option. [4047](https://github.com/TileDB-Inc/TileDB/pull/4047)
* Migrate fragment_name parsing into StorageFormat. [4520](https://github.com/TileDB-Inc/TileDB/pull/4520)
* Add setting to disable install_sigpipe_handler on S3. [4573](https://github.com/TileDB-Inc/TileDB/pull/4573)
Defects removed
* Group metadata doesn't get serialized. [3147](https://github.com/TileDB-Inc/TileDB/pull/3147)
* Added `include <array>` to `tiledb/sm/cpp_api/type.h`. [4504](https://github.com/TileDB-Inc/TileDB/pull/4504)
* Fix broken linking tests against a shared WebP library. [4525](https://github.com/TileDB-Inc/TileDB/pull/4525)
* Fix delta filter deserialization for format ver 19. [4541](https://github.com/TileDB-Inc/TileDB/pull/4541)
* Fix array schema selection when time traveling. [4549](https://github.com/TileDB-Inc/TileDB/pull/4549)
Documentation
* Add a table with the history of the storage format versions. [4487](https://github.com/TileDB-Inc/TileDB/pull/4487)
* Add timestamped_name file to the Format Spec. [4533](https://github.com/TileDB-Inc/TileDB/pull/4533)
API changes
C API
* Add tiledb_group_get_member_by{index|name}_v2 (and deprecate tiledb_group_get_member_by_{index|name}). [4019](https://github.com/TileDB-Inc/TileDB/pull/4019)
* `tiledb_group_create` is no longer marked as deprecated. [4522](https://github.com/TileDB-Inc/TileDB/pull/4522)
C++ API
* Improve error message in C++ API for bad filter option type. [4503](https://github.com/TileDB-Inc/TileDB/pull/4503)
Build System Changes
* Improve building the Windows binaries for the R API. [4448](https://github.com/TileDB-Inc/TileDB/pull/4448)
* Update curl to version 8.4.0. [4523](https://github.com/TileDB-Inc/TileDB/pull/4523)
* Clean-up unused build system code. [4527](https://github.com/TileDB-Inc/TileDB/pull/4527)
* Cache more information when configuring the CMake project. [4449](https://github.com/TileDB-Inc/TileDB/pull/4449)
* Remove the vcpkg submodule and download it automatically when configuring. [4484](https://github.com/TileDB-Inc/TileDB/pull/4484)
* Use the provided CMake packages to import the compression libraries when vcpkg is enabled. [4500](https://github.com/TileDB-Inc/TileDB/pull/4500)
* Remove bundling our static library dependencies; they are now found from the CMake config file. [4505](https://github.com/TileDB-Inc/TileDB/pull/4505)
* Remove the CMake and bootstrap script options related to abseil and crc32c linkage tests. [4527](https://github.com/TileDB-Inc/TileDB/pull/4527)
* Move documentation generation and source formatting into dedicated CMake modules. [4538](https://github.com/TileDB-Inc/TileDB/pull/4538)
* Fix regression when libraries were sometimes installed in the `lib64` directory. [4572](https://github.com/TileDB-Inc/TileDB/pull/4572)
Test only changes
* Remove UnitTestConfig::array_encryption_key_length. [4482](https://github.com/TileDB-Inc/TileDB/pull/4482)